package com.heima.user.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.dtos.LoginDto;
import com.heima.model.user.pojos.ApUser;
import com.heima.user.mapper.ApUserMapper;
import com.heima.user.service.IApUserService;
import com.heima.utils.common.AppJwtUtil;
import org.apache.commons.lang.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.DigestUtils;
import java.util.HashMap;
import java.util.Map;

@Service
@Transactional
public class ApUserServiceImpl extends ServiceImpl<ApUserMapper, ApUser> implements IApUserService {

    @Override
    public ResponseResult login(LoginDto loginDto) {
        //1.正常登录

        //1.1判断用户是否存在
        if (!StringUtils.isBlank(loginDto.getPhone()) && !StringUtils.isBlank(loginDto.getPassword())) {
            //1.2查询用户
            ApUser apUser = getOne(Wrappers.<ApUser>lambdaQuery().eq(ApUser::getPhone, loginDto.getPhone()));
            if (apUser == null) {
                return ResponseResult.errorResult(AppHttpCodeEnum.AP_USER_DATA_NOT_EXIST);
            }
            //1.3验证密码
            String salt = apUser.getSalt();
            String password = loginDto.getPassword();
            password = DigestUtils.md5DigestAsHex((password + salt).getBytes());
            if(!password.equals(apUser.getPassword())){
                return ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);
            }
            //1.4返回数据 jwt
            Map<String, Object> map = new HashMap<>();
            apUser.setSalt("");
            apUser.setPassword("");
            map.put("user", apUser);
            map.put("token", AppJwtUtil.getToken(apUser.getId().longValue()));
            return ResponseResult.okResult(map);
        } else {
            //2.游客登录 直接返回token id=0
            Map<String, Object> map = new HashMap<>();
            map.put("token",AppJwtUtil.getToken(0L));
            return ResponseResult.okResult(map);
        }
    }
}
